On a construction of self-orthogonal codes from orbit matrices of 2-designs

Authors

  • Marija Maksimović University of Rijeka
  • Sanja Rukavina Faculty of Mathematics, University of Rijeka

DOI:

https://doi.org/10.55016/ojs/cdm.v20i2.76082

Abstract

In 2003, Harada and Tonchev presented a construction of self-orthogonal codes from orbit matrices of symmetric $2$-designs with fixed point free automorphisms. Since then, the constructions of self-orthogonal codes from orbit matrices of $2$-designs has been extensively studied. In this paper, we present new constructions of self-orthogonal codes from orbit matrices of $2$-designs for the cases not covered by the previously described methods. We construct self-orthogonal codes from orbit matrices of $2$-$(1024,496,249)$ and $2$-$(45,5,1)$ designs. Some of the constructed codes are optimal.

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Published

2025-10-28

Issue

Section

Articles